Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a part in the car that helps control the temperature of a special fluid used to reduce pollution is not opening like it should.
The P241E code indicates that the control valve responsible for managing the flow of coolant to the reductant heater is stuck in the closed position.
The reductant heater coolant control valve is part of the vehicle's emissions system, specifically the Selective Catalytic Reduction (SCR) system. It regulates the flow of coolant to the reductant heater, which is used to heat the Diesel Exhaust Fluid (DEF) to ensure it remains in a liquid state and functions properly. If this valve is stuck closed, it can prevent the DEF from being heated, which may lead to crystallization or freezing in cold conditions.
• Check Engine Light is on
• Poor emissions performance
• Possible reduction in fuel efficiency
• Faulty coolant control valve
• Electrical issues such as a short or open circuit
• Mechanical blockage or debris in the valve
Reductant: A substance used in the SCR system to reduce emissions.
SCR: Selective Catalytic Reduction, a system used to reduce nitrogen oxide emissions in diesel engines.
• Use an OBD-II scanner to confirm the code.
• Inspect the coolant control valve for physical damage or blockage.
• Check the electrical connections and wiring to the valve.
• Replace the faulty coolant control valve.
• Repair or replace damaged wiring or connectors.
• Clear any debris causing a blockage.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-250
• Chevrolet Silverado
• Ram 2500
• Regular maintenance of the emissions system
• Ensure quality DEF is used
• Check for software updates from the manufacturer
Emissions System Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid ignoring the issue as it may affect emissions and fuel efficiency.
Check with your vehicle manufacturer for emissions system warranty coverage.
This code has become more common with the increased use of SCR systems in diesel vehicles to meet emissions standards.
Moderate – It should be addressed soon to prevent emissions issues and potential DEF system damage.
Driving with a malfunctioning emissions system can lead to increased pollution and may not comply with local emissions laws.
• Engine at operating temperature
• Vehicle in a safe location to perform diagnostics
The coolant control valve is typically located near the DEF tank or along the coolant lines leading to the SCR system.
Q: Can I drive with a P241E code?
A: While you may be able to drive, it's not recommended as it can lead to emissions issues and potential damage to the DEF system.
Q: What happens if the valve remains stuck?
A: If the valve remains stuck, the DEF may not be properly heated, leading to crystallization or freezing, especially in cold weather.
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